Home / 6,531.21-9,788.27-3,020.78

Finding the Fourth Proportional to 6,531.21, 9,788.27 and 3,020.78

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Solution

The fourth proportional to 6,531.21, 9,788.27 and 3,020.78 is: 4,527.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,531.21 : 9,788.27 = 3,020.78 : x
  2. Step 2: Convert to fraction form
    6,531.21/9,788.27 = 3,020.78/x
  3. Step 3: Cross multiply
    6,531.21x = 9,788.27 × 3,020.78
  4. Step 4: Simplify right side
    6,531.21x = 29,568,146.21
  5. Step 5: Solve for x
    x = 29,568,146.21/6,531.21
  6. Step 6: Final answer
    x = 4,527.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.